However, before Ceejay and make the trip across the pond with his dad and mom, Susan Brown, the family has to settle the matter of his cancer treatment.

Marcus said: “He hasn’t been well this week, he’s had a virus and has been in the Lourdes Hospital in Drogheda, and despite the big trip being on the horizon we can’t lose sight of the fact he is still battling a serious illness.

“The treatment he is undergoing has an 80% success rate so we have every reason to be optimistic about the eventual outcome.

“We have had to produce a letter from doctors in Crumlin Children’s Hospital to establish it is okay for him to fly and we had to source a hospital with an Oncology unit in New York in case we need one when we are there.

“Ceejay has started playschool and is in the final year of what doctors always told us was a four-year medical plan, he’s doing well despite this week's setbacks.

“And he’s delighted he’s going to meet NYPD members who have sent him so many kind messages."

Ceejay was diagnosed with leukemia in September 2014 and will be going through treatment until January 2018.